Power Steering Fluid Overflowing

[harryww89]

Gents,

 

Currently out at the Nurburgring with the Supra, struggling with the power steering fluid resevoir overflowing during track use? In the mean time I will put a sock over the resevoir to stop the fluid going over the engine bay.

 

Any ideas why this could be? Boiling the fluid? I can spot no leaks in the system, a new power steering pump was fitted around a month ago with brand new fluid so I can't see the pump being the issue.

 

Regards,

Harry

[BoostJunky86]

I would say It'll be fluid dude.

Getting to hot.

It's my understanding that

Big wide wheels and wide offsets put lots of pressure on the pump and it gets hot.

Oil cooler or better fluid with a higher temp range.

[Burna]

Do you at least have the stock cooler that goes in front of the rad?

[Scooter]

Is it just a little too full!? When cold check the level.

 

Is the fluid in the reservoir bubbly/foamy too?

[harryww89]

Cheers for the quick responses chaps,

 

I believe it's more than likely the combination of wide semi-slicks and the constant abuse.

 

I did top up the reservoir before I left the UK so that could've been a compounding issue, but no foaming or bubbling, just overflow.

 

Stock cooler is in position still, potentially needs better flow to it or make a custom 4 row cooler for the PS fluid.

[Scooter]

First thing I'd do is check the level, undoubtably it's getting warm/hot and expanding so perhaps running a smidge under the cold marker would be better?

[SteveC]

There's a small mesh filter in the power steering reservoir. That can clog up and cause overflowing.

[Chris Wilson]

If it's a manual fit an auto rad and use the transmission cooler in the bottom tank as a PAS cooler. Neat, low parts count, doesn't block air flow.

[bignum]

I`d put money on you overfilled it, ive had this, also make sure its not dripping onto the ground anywhere especially in the carpark, the marshals will be onto you, park on the grass overflow carpark untill you get the issue sorted.